3935865 has 8 divisors (see below), whose sum is σ = 6297408. Its totient is φ = 2099120.

The previous prime is 3935861. The next prime is 3935879. The reversal of 3935865 is 5685393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3935865 - 2² = 3935861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3935861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131181 + ... + 131210.

It is an arithmetic number, because the mean of its divisors is an integer number (787176).

Almost surely, 2^3935865 is an apocalyptic number.

It is an amenable number.

3935865 is a deficient number, since it is larger than the sum of its proper divisors (2361543).

3935865 is a wasteful number, since it uses less digits than its factorization.

3935865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262399.

The product of its digits is 97200, while the sum is 39.

The square root of 3935865 is about 1983.9014592464. The cubic root of 3935865 is about 157.8871303061.

The spelling of 3935865 in words is "three million, nine hundred thirty-five thousand, eight hundred sixty-five".